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CompX National Pin Tumbler Mailbox Lock

C9100 / C9200

APPLICATION – Exterior pedestal-mounted neighborhood boxes. Has keyway dust shutter for lock protection. Clip mounted. C9100 & C9200 are the only mailbox locks approved by USPS for 4C (CBU) mailboxes.
OPERATION – C9100 operates clockwise. C9200 operates counter clockwise. Key removable in locked position only.
KEYING – Available keyed differently only (2,000 changes).
PACKAGING – Includes: a spring clip, mounting nut and (3) keys.

Heavy duty hook cam can be ordered below - click on thumbnail at left to see a larger image.

C9100 Instruction Sheet
C9200 Instruction Sheet

2 or more

$20.57 ea

5 or more

$18.57 ea

10 or more

$16.57 ea

CompX National | C9100 $21.57 ea

98 left in-stock.
• More can be ordered, Arriving by 07/15/2025

Pin Tumbler Mailbox Lock - Clockwise Operation. NOTE: Extra keys may only be purchased with the purchase of a new lock.

Extra Keys
$7.17 ea

CompX National | C9200 $21.57 ea

162 left in-stock.
• More can be ordered, Arriving by 07/15/2025

Pin Tumbler Mailbox Lock - Counter-Clockwise Operation. NOTE: Extra keys may only be purchased with the purchase of a new lock.

Extra Keys
$7.17 ea

CompX National | C7120 $11.97 ea

8 left in-stock.
• More can be ordered, Arriving by 07/15/2025

Heavy Duty Hook Cam

Closed on Friday, July 4th: Independence Day

Want it delivered Thursday, July 3, 2025? Order by 5pm EDT Wednesday, July 2, 2025 choose FedEx Overnight shipping.

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